🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.41 AU - 0.65 AU

Year: 249 Days

Day: 14.1 Hours

Environment

Temp: -117 °C

Axial Tilt: 9.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.54 AU - 0.76 AU

Year: 338 Days

Day: 45.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872

Radius: 12.3

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.84 AU - 1.32 AU

Year: 725 Days

Day: 7.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,460,344 km

• M1: 153,787 km (0.108 R)
• M2: 560,244 km (0.089 R)
• M3: 972,685 km (0.108 R)
• M4: 1,358,349 km (0.111 R)
• M5: 1,976,038 km (0.104 R)
• M6: 2,447,421 km (0.059 R)
• M7: 3,184,639 km (0.095 R)
• M8: 4,111,548 km (0.113 R)
• M9: 4,596,395 km (0.104 R)
• M10: 5,604,385 km (0.115 R)
• M11: 6,018,472 km (0.096 R)
• M12: 6,798,176 km (0.063 R)
• M13: 7,408,835 km (0.119 R)
• M14: 8,533,362 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.8

Radius: 12.2

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.38 AU - 2.98 AU

Year: 2833 Days

Day: 7.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,460,344 km

• M1: 158,125 km (0.098 R)
• M2: 569,669 km (0.083 R)
• M3: 999,763 km (0.053 R)
• M4: 1,557,613 km (0.085 R)
• M5: 2,293,036 km (0.105 R)
• M6: 2,923,591 km (0.059 R)
• M7: 3,917,220 km (0.036 R)
• M8: 4,432,735 km (0.07 R)
• M9: 5,234,729 km (0.083 R)
• M10: 6,882,250 km (0.102 R)
• M11: 7,520,584 km (0.104 R)
• M12: 8,598,886 km (0.093 R)
• M13: 9,142,674 km (0.084 R)
• M14: 9,573,815 km (0.111 R)
• M15: 11,247,666 km (0.073 R)
• M16: 11,859,670 km (0.118 R)
• M17: 13,960,025 km (0.056 R)
• M18: 14,712,352 km (0.117 R)
• M19: 15,167,279 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.5

Radius: 8.9

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.57 AU - 4.15 AU

Year: 3977 Days

Day: 5.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 32,460,344 km

• M1: 111,002 km (0.056 R)
• M2: 607,218 km (0.085 R)
• M3: 979,716 km (0.114 R)
• M4: 1,307,186 km (0.095 R)
• M5: 2,105,740 km (0.102 R)
• M6: 2,709,666 km (0.049 R)
• M7: 3,179,553 km (0.06 R)
• M8: 3,702,996 km (0.108 R)
• M9: 4,373,643 km (0.086 R)
• M10: 5,303,394 km (0.064 R)
• M11: 5,926,918 km (0.104 R)
• M12: 6,508,255 km (0.092 R)
• M13: 6,968,718 km (0.074 R)
• M14: 9,181,719 km (0.106 R)
• M15: 10,161,286 km (0.086 R)
• M16: 11,382,902 km (0.108 R)
• M17: 12,188,935 km (0.094 R)
• M18: 12,512,366 km (0.108 R)
• M19: 15,579,272 km (0.096 R)
• M20: 17,141,822 km (0.049 R)
• M21: 18,806,098 km (0.098 R)
• M22: 20,510,466 km (0.059 R)
• M23: 21,769,931 km (0.044 R)
• M24: 23,009,798 km (0.111 R)
• M25: 24,078,675 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.4

Radius: 13.6

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.19 AU - 5.23 AU

Year: 6600 Days

Day: 6.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,460,344 km

• M1: 169,195 km (0.08 R)
• M2: 933,640 km (0.069 R)
• M3: 2,529,700 km (0.119 R)
• M4: 3,598,278 km (0.056 R)
• M5: 4,473,425 km (0.054 R)
• M6: 7,592,391 km (0.119 R)
• M7: 10,831,634 km (0.031 R)
• M8: 11,256,791 km (0.096 R)
• M9: 12,140,765 km (0.04 R)
• M10: 13,176,730 km (0.119 R)
• M11: 21,918,182 km (0.058 R)
• M12: 24,086,454 km (0.095 R)
• M13: 24,894,432 km (0.108 R)
• M14: 28,936,118 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402

Radius: 5.7

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 4.92 AU - 7.16 AU

Year: 9585 Days

Day: 21.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 32,460,344 km

• M1: 70,909 km (0.108 R)
• M2: 387,159 km (0.117 R)
• M3: 701,464 km (0.063 R)
• M4: 889,659 km (0.071 R)
• M5: 1,111,811 km (0.111 R)
• M6: 1,419,983 km (0.114 R)
• M7: 1,628,522 km (0.112 R)
• M8: 1,872,666 km (0.101 R)
• M9: 3,060,174 km (0.091 R)
• M10: 3,298,334 km (0.101 R)
• M11: 3,502,385 km (0.088 R)
• M12: 3,738,900 km (0.103 R)
• M13: 4,938,525 km (0.06 R)
• M14: 5,967,309 km (0.117 R)
• M15: 6,270,993 km (0.098 R)
• M16: 6,983,079 km (0.108 R)
• M17: 10,374,912 km (0.1 R)
• M18: 11,419,553 km (0.074 R)
• M19: 12,153,780 km (0.099 R)
• M20: 14,787,750 km (0.071 R)
• M21: 15,344,254 km (0.116 R)
• M22: 15,850,493 km (0.101 R)
• M23: 16,302,578 km (0.089 R)
• M24: 18,197,085 km (0.106 R)
• M25: 18,479,227 km (0.086 R)
• M26: 21,778,009 km (0.043 R)
• M27: 23,316,324 km (0.111 R)
• M28: 23,649,179 km (0.118 R)
• M29: 24,069,849 km (0.074 R)
• M30: 26,158,085 km (0.111 R)
• M31: 26,337,304 km (0.045 R)
• M32: 26,698,433 km (0.085 R)
• M33: 28,081,764 km (0.115 R)
• M34: 34,308,177 km (0.118 R)
• M35: 35,173,003 km (0.109 R)
• M36: 37,854,844 km (0.044 R)
• M37: 38,430,347 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 406.8

Radius: 7.9

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 6.52 AU - 6.9 AU

Year: 11223 Days

Day: 19.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 32,460,344 km

• M1: 154,535 km (0.107 R)
• M2: 744,549 km (0.117 R)
• M3: 1,010,982 km (0.04 R)
• M4: 1,534,126 km (0.088 R)
• M5: 1,865,485 km (0.048 R)
• M6: 2,297,225 km (0.086 R)
• M7: 5,205,707 km (0.11 R)
• M8: 7,479,744 km (0.034 R)
• M9: 10,344,842 km (0.091 R)
• M10: 13,272,323 km (0.105 R)
• M11: 16,641,716 km (0.098 R)
• M12: 20,384,355 km (0.085 R)
• M13: 21,993,729 km (0.109 R)
• M14: 23,599,363 km (0.059 R)
• M15: 27,711,061 km (0.104 R)
• M16: 34,234,725 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 78.3

Radius: 4.2

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 7 AU - 10.34 AU

Year: 16483 Days

Day: 22 Hours

Environment

Temp: -238 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,460,344 km

• M1: 53,107 km (0.079 R)
• M2: 621,878 km (0.101 R)
• M3: 875,746 km (0.027 R)
• M4: 2,540,022 km (0.084 R)
• M5: 3,064,812 km (0.1 R)
• M6: 6,540,419 km (0.054 R)
• M7: 6,742,077 km (0.085 R)
• M8: 7,888,595 km (0.09 R)
• M9: 8,547,873 km (0.1 R)
• M10: 10,377,903 km (0.101 R)
• M11: 16,707,539 km (0.088 R)
• M12: 24,313,394 km (0.054 R)
• M13: 25,784,988 km (0.052 R)
• M14: 28,994,461 km (0.045 R)
• M15: 29,175,175 km (0.077 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 454 - 14,978 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit